Home / 90,010.64-124,222.11-51,782.60

Finding the Fourth Proportional to 90,010.64, 124,222.11 and 51,782.60

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Solution

The fourth proportional to 90,010.64, 124,222.11 and 51,782.60 is: 71,464.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,010.64 : 124,222.11 = 51,782.60 : x
  2. Step 2: Convert to fraction form
    90,010.64/124,222.11 = 51,782.60/x
  3. Step 3: Cross multiply
    90,010.64x = 124,222.11 × 51,782.60
  4. Step 4: Simplify right side
    90,010.64x = 6,432,543,833.29
  5. Step 5: Solve for x
    x = 6,432,543,833.29/90,010.64
  6. Step 6: Final answer
    x = 71,464.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.